this question mainly tests parallelism.
It is no surprise that Riyadh,
- noun modifier (noun modified Riyadh) - the Saudi capital where people revere birds of prey and ride camels regularly,
(cont. of the first clause) is home to the largest hospital for falcons,
(noun+noun modifier correctly refers to the largest hospital) a place where falcons from all over the world are treated in
list:
a) operating rooms,
b) an ophthalmology department,
c) and a pox area,
cont. of the main clause - and to the largest veterinary clinic for desert mammals,
-noun+noun modifier correctly modifies veterinary clinic for desert mammals) a place where camels and other desert species are expertly cared for.
A looks good, no errors, modifiers are correctly used. lists are properly connected. the meaning is clear.
B. an ophthalmology department, a pox area, and the largest veterinary clinic for desert mammals, where camels and other desert species are expertly cared for.
this one makes the largest veterinary clinic a part of the list. this is incorrect. Riyadh is home to the largest hospital for falcons and to the largest veterinary clinic for desert mammals. this is a correct list. B is out.
C. an ophthalmology department, to a pox area, and to the largest veterinary clinic for desert mammals, a place where camels and other desert species are expertly cared for.
"to" why is it need it here? list is not properly connected. thus C is incorrect.
D. to an ophthalmology department, and to a pox area and the largest veterinary clinic for desert mammals, a place where camels and other desert species are expertly cared for.
list is not properly connected. now R is home to:
largest hospital for falcons
ophthalmology department
pox area
largest veterinary clinic.
moreover, even the new list is not properly connected.
D is out.
E. an ophthalmology department and a pox area, and the largest veterinary clinic for desert mammals, a place where camels and other desert species are expertly cared for
the second and third entities of the list are not properly connected.
E is out.